scholarly journals Delamination-wedge structure beneath the Hidaka Collision Zone, central Hokkaido, Japan inferred from seismic reflection profiling

1999 ◽  
Vol 26 (8) ◽  
pp. 1057-1060 ◽  
Author(s):  
Noriko Tsumura ◽  
Hidemasa Ikawa ◽  
Takashi Ikawa ◽  
Masanao Shinohara ◽  
Tanio Ito ◽  
...  
Keyword(s):  
Seismic Reflection ◽  
Collision Zone ◽  
Wedge Structure ◽  
Seismic Reflection Profiling ◽  
Hidaka Collision Zone

Crustal structure and tectonics of the Hidaka Collision Zone, Hokkaido (Japan), revealed by vibroseis seismic reflection and gravity surveys

1998 ◽  
Vol 290 (3-4) ◽  
pp. 197-210 ◽  
Author(s):  
Kazunori Arita ◽  
Takashi Ikawa ◽  
Tanio Ito ◽  
Akihiko Yamamoto ◽  
Matsuhiko Saito ◽  
...  
Keyword(s):  
Crustal Structure ◽  
Seismic Reflection ◽  
Collision Zone ◽  
Hidaka Collision Zone

scholarly journals Characteristics of relocated hypocenters of the 2018 M6.7 Hokkaido Eastern Iburi earthquake and its aftershocks with a three-dimensional seismic velocity structure

2019 ◽  
Vol 71 (1) ◽  
Author(s):  
Saeko Kita
Keyword(s):  
Seismic Velocity ◽  
Three Dimensional ◽  
Double Difference ◽  
Earthquake Catalog ◽  
Seismic Structure ◽  
Depth Limit ◽  
High Attenuation ◽  
South Central ◽  
Collision Zone ◽  
Hidaka Collision Zone

AbstractI relocated the hypocenters of the 2018 M6.7 Hokkaido Eastern Iburi earthquake and its surrounding area, using a three-dimensional seismic structure, the double-difference relocation method, and the JMA earthquake catalog. After relocation, the focal depth of the mainshock became 35.4 km. As previous studies show, in south-central Hokkaido, the Hidaka collision zone is formed, and anomalous deep and thickened forearc crust material is subducting at depths of less than 70 km. The mainshock and its aftershocks are located at depths of approximately 10 to 40 km within the lower crust of the anomalous deep and thickened curst near the uppermost mantle material intrusions in the northwestern edge of this Hidaka collision zone. Like the two previous large events, the aftershocks of this event incline steeply eastward and appear to be distributed in the deeper extension of the Ishikari-teichi-toen fault zone. The highly inclined fault in the present study is consistent with a fault model by a geodetic analysis with InSAR. The aftershocks at depths of 10 to 20 km are located at the western edge of the high-attenuation (low-Qp) zone. These kinds of relationships between hypocenters and materials are the same as the 1970 and 1982 events in the Hidaka collision zone. The anomalous large focal depths of these large events compared with the average depth limit of inland earthquakes in Japan could be caused by the locally lower temperature in south-central Hokkaido. This event is one of the approximately M7 large inland earthquakes that occurred repeatedly at a recurrence interval of approximately 40 years and is important in the collision process in the Hidaka collision zone.

The North American Midcontinent Rift beneath Lake Superior from Glimpce seismic reflection profiling

Tectonics ◽  
1989 ◽  
Vol 8 (2) ◽  
pp. 305-332 ◽  
Author(s):  
W. F. Cannon ◽  
Alan G. Green ◽  
D. R. Hutchinson ◽  
Myung Lee ◽  
Bernd Milkereit ◽  
...  
Keyword(s):  
North American ◽  
Seismic Reflection ◽  
Lake Superior ◽  
Midcontinent Rift ◽  
The North ◽  
Seismic Reflection Profiling

Proterozoic basin in the southern Midcontinent of the United States revealed by COCORP deep seismic reflection profiling

Geology ◽  
1981 ◽  
Vol 9 (12) ◽  
pp. 569 ◽  
Author(s):  
J. A. Brewer ◽  
L. D. Brown ◽  
D. Steiner ◽  
J. E. Oliver ◽  
S. Kaufman ◽  
...  
Keyword(s):  
United States ◽  
Seismic Reflection ◽  
The United States ◽  
Deep Seismic Reflection ◽  
Seismic Reflection Profiling

Continuous seismic reflection profiling of the deep basement, Hardeman County, Texas

1976 ◽  
Vol 87 (11) ◽  
pp. 1537 ◽  
Author(s):  
JACK OLIVER ◽  
MILTON DOBRIN ◽  
SIDNEY KAUFMAN ◽  
ROBERT MEYER ◽  
ROBERT PHINNEY
Keyword(s):  
Seismic Reflection ◽  
Seismic Reflection Profiling

scholarly journals Deep seismic reflection profiling over the Siwalik fold belt of NW Himalaya

1970 ◽  
Vol 5 (7) ◽  
pp. 111-112
Author(s):  
B Rajendra Prasad ◽  
V Vijaya Rao ◽  
HC Tewari
Keyword(s):  
Seismic Reflection ◽  
Fold Belt ◽  
Special Issue ◽  
Nw Himalaya ◽  
Deep Seismic Reflection ◽  
Seismic Reflection Profiling

DOI = 10.3126/hjs.v5i7.1301 Himalayan Journal of Sciences Vol.5(7) (Special Issue) 2008 p.111-112

Deep seismic reflection profiling of sedimentary basins offshore Brazil: Geological objectives and preliminary results in the Sergipe Basin

1995 ◽  
Vol 20 (4) ◽  
pp. 515-539 ◽  
Author(s):  
Webster Ueipass Mohriak ◽  
JoséHenrique Lira Rabelo ◽  
Renato Darros De Matos ◽  
Mozart C. De Barros
Keyword(s):  
Seismic Reflection ◽  
Sedimentary Basins ◽  
Deep Seismic Reflection ◽  
Preliminary Results ◽  
Seismic Reflection Profiling
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